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W. H. OSTRANDBR. MAGAzINBPIREARM N6. 603,066. PatentedApr. 26, '1696;l

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W. H. OISTRANDER. MAGAZINE FIREARM.

No. 603,066. PatentedApr. 26, 1898.

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MAGAZINE PIRBARM.

Patented Apr. 26, 1898.

'I FFTC.

VILLIS H. OSTRANDER, OF BOSTON, MASSACHUSETTS.

MAGAZINE-FIREARIVI.

SPECIFICATION forming part of Letters Patent No. 603,066, dated April 26, 1898.

Application filed October 8, 1896. Serial No. 608,253. (No model.)

To all whom it may concern.'

Be it known that I, VILLIs I-I. OSTRANDER, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Repeating Breech- Loading Guns, of which the following is a full, clear, and exact description.

My invention relates to an improvement in repeating breech-loading guns, particularly Shotguns, the invention being an improvement upon the arm for which Letters Patent were granted to me April21, 1891, No. 450,773, and reissued December 13, 1892, No. 11,295, also March 1, 1892, No. 469,900, and December 18, 1891, No. 531,132.

The object of the invention is to improve particularly upon the locking or bolt devices and parts designed to operate the extracting mechanism and to provide a means whereby the bolting device will also act asa safety device, preventing the triggers being operated when the barrels are opened.

Another object of the invention is to provide a means whereby the latch-plates of the extracting devices will be operated from the hammer and to provide for operating the lock in the safety device by the sears in such manner that the sear of the hammer not in operation will be automatically locked, rendering it impossible to press both triggers at once.

A further object of the invention is to provide the frame with offsets which serve to take up the force of the mainspring to a predetermined extent, so that the tiring-pins will not be called upon to sustain the full force ot' the said spring, as is customary.

A further object of the invention is to provide a simple means whereby upon the return movement of the barrels the eXtractors will be positively placed in a position to act for any one barrel fired or for both barrels if the barrels are fired one directly after the other.

The invention consists in the lnovel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal vertical section through the improved gun, taken on the line 1 1 of Fig. 3. Fig. 2 is a vertical longitudinal section on the line 2 2 of Fig. 3. Fig. 3 is a plan View of that portion of the gun shown in Fig. 2. Fig. 4 is a transverse section on the line 4. 4. of Fig. 2.v Fig. 5 is a transverse section taken on the line 5 5 of Fig. 2. Fig. 6 is a transverse section taken on the line 6 6 of Fig. 7. Fig. '7 is a longitudinal vertical section taken on the line 7 7 of Fig. 6. Fig. 8 is a vertical longitudinal section taken on the line 8 8 of Fig. 3, showing the right-hand trigger ready to fire. Fig. 9 is a horizontal section on the line 9 9 of Fig. 1. Fig. 10 isa vertical section on the line 1() 10 of Fig. 1. Fig. 1l is a bottom plan view of the horizontal rack and the cranks operatin g the latches for the shifting plates. Fig. 12 is a perspective view of the left-hand shifting plate. Fig. 13 is a perspective view of the right-hand shifting plate. Fig. 14 is a rear View of the barrels. Fig. 15 is an outer side elevation of that portion of the gun shown in Fig. 1, and Fig. 16 is a plan View of the sears andthe safety mechanism operating in connection therewith. Fig. 17 is a detail View of a portion of the frame, showing a stop-pin in plan view; and Fig. 18 is a detail perspective view of a stop-pin.

In carrying out the invention the barrels A are provided in the space between their rear ends with a vertical groove 20, rounded off in a forwardly direct-ion at the bottom, as shown at 20, and in the upper portion of the vertical groove 2O a pin 21 is secured, while at the top portion of the groove alock 22 is formed, which extends horizontally from the upper portion of the barrel, and in the bottom web between the barrels a longitudinal groove 23 is produced, having its side Walls undercut, and the groove 23 is provided at a point in its length or between its ends with a longitudinal recess 24, as shown in Fig. 1.

B represents the frame of the gun, which is adapted for attachment to the stock, and

B' is the front extension of the frame, known as the fore-end, upon which the pair of barrels A are adapted to slide forward and backward. The barrels when closed are adapted to strike against a standing breech 25, and this standing breech is the full width of the frame at its front and is preferably IOO wider than the said frame. In the frame eX- tension a receptacle is formed, open at the top and divided into two magazine-chambers byalongitudinal partition 26, extending from the front end of the frame extension or foreend to the standing breech, and each magazine-chamber is preferably provided with a drop-door 29, forming the major portion of its outer side, suitable latches being provided for the door, as shown in Fig. 15. The two magazine-chambers are designated, respectively,as 27 and 28,and both of them are shown in Figs. 6 and 9.

A longitudinal slot 31 is made in the partition 26 dividing the magazine-chambers, and this slot extends into the frame-chamber C, in which the firing and other mechanism are located, and the forward end of the slot 3l is in direct communication with a slot 32, producd in the bottom of said frame extension or foreend, as is likewise shown in Fig. 1. The lower portion of the slot 31 in the partition 26 is closed by a slide 37, which is located in the bottom of the magazine-section of the gun.

A limiting-bar 33 is held to slide in the upper portion of the slot 3l in the partition 2G, and immediately below the limiting-bar 33 a releasing-bar 34 is held to slide in the said Slot, but the releasing-bar extends rearwardly beyond the end of the limiting-bar and is attached to a trigger 413, located within the usual trigger-guard 47. The narrower portion of the slot 31 is designated by the reference-numeral 35, which appears in Fig. 1. The forward end of the releasing-bar has ribs 3G formed upon its sides, adapted to enter grooves in the side walls of the reduced section 35 of the slot 3l, so that the releasingbar will move at all times in a position parallel to a central line drawn longitudinally through the barrels.

The forward or head end of the releasingbar is bifurcated, as shown in Fig. 10, to receive the forwardly-curved extremity of an arm 3S, which will be drawn rearward when the releasing-bar is taken in a like direction, and the said arm 38 is made to pass upward through a longitudinal slot produced in the limiting-bar 33, as is also shown in Fig. 10. The upper end of this arm 3S is secured to a rock-shaft 40, journaled in the upper portion of the slot 32 in the fore-end or frame eXtension at the rear end of the said slot. The shaft 40 is provided with a series of teeth 4l, and these teeth are adapted for engagement with teeth formed upon the inner Vertical edge of a lock-latch 42, which lock-latch is provided with a forwardly-extending arm pivoted, by means of a pin 43, in the slot 32 of the fore-end, as is also shown in Fig. 1. The lock-latch has guided movement in the fore-end and is adapted to normally extend upward beyond the top of the fore-end and enter the enlarged portion 24 in the bottom channel of the barrels. The lower portion of the lock-latch 42 is bifurcated, and the forward lower portion of the latch :is provided with a pin 44, supporting ordinarily a roller, as shown in dotted lines in Fig. 1, and this roller engages with a shoulder 45 in the limiting-bar when the barrels are closed against the standing breech. Vhen the latch 42 is drawn downward to permit the barrels to be carried forward, the roller 44 is brought in engagement with the under edge of the limiting-bar. Therefore the latch is prevented from returning rearward to its normal position, and the roller may consequently be termed a stop When the barrels are closed, the roller is brought in front of the shoulder l45, and the latch is free to be forced into position into the barrels.

A lug 48 or its equivalent is secured upon the upper face of the releasing-bar, and a spring 49 is located between this lug and a portion of the bottom of the frame-chamber C, as is also shown in Fig. 1. The forward end of the limiting-bar is reduced, the reduced portion extending from the shoulder 45, and is capable of being sprung upward and terminates at its forward end in a head-block 51. This head-block is held to slide in a slot 52, made in the fore-end or frame extension, and is controlled by a lever 53, having a camhead 53, and a spring 54, located within the slot 52 and secured at one of its ends, has its free end passed between the cam-head of the lever 53 and the bottom of the head-block 51. When the lever 53 is carried upward to the substantially horizontal position shown in Fig. 1, the forward end of the limiting-bar is forced upward within the slot 24 in the bottom of the barrels and is held in that position. When, however, the lever is carried to a position at an angle to the fore-end, the headblock of the limiting-bar will drop downward, so as to be entirely removed from the barrelslot 24. It will be understood that the upper face of the fore end is provided with the ordinarydvetail rib to enter the dovetail channel 23 in the lower web between the barrels.

Vhile the lock-latch is in its upper position, (shown in Fig. 1,) it will be impossible to open the barrels; but by pulling the trigger 40 rearward or in direction of the stock the releasing-bar 34 will be carried in the same direction, and by means of its connection with the lock-latch will draw the latter downward out from the deep slot 24 in the bottom of the barrels, enabling the barrels to be carried forward and rearward the required distance, the forward movement of the barrels being limited by the rear end of the deep barrel-slot 24 engaging with the rear face of the head-block 25 on the limiting-bar when that IOO IIO

bar has been carried as far as determined in a forwardly direction, the bar taking the forwardly direction for a purpose to be hereinafter set forth.

When it is desired to entirely remove the barrels from the fore-end or frame extension, the lever 53 is first carried downward at an an gle to the fore-end, enabling the head-block 5l to leave the deep slot 24 in the barrels. The trigger 46 is next drawn rearward and the barrels may be slid without interruption from oft the frame of the gun. A spring 55 serves to normally hold the lock-latch in its upper position, the said spring being secured at one end to a fixed support and having an upward bearing at its other end in the latch. (See Fig. l.)

At the center of the standing breech a rib 57 is formed, constituting an upward continuation of the partition 26 of the magazine-chambers. In the top central portion of the standing breech a horizontal recess 58 is made to receive the lug 22, extending rearwardly from the top of the barrel, and an indicator-rod is held to slide vertically in suitable openings in the standing breech at each side of the rib 57 and the magazine-partition 26, the said rods being designated as 59 and 60, and each indicator-rod at its upper end is provided with a recess 58a at its inner face to form a continuation of the recess 58 in the standing breech. The lu g 22 of the barrel extends over the indicator-rods and not only prevents them from rising while the barrels are closed against the breech, but also insures the indicators being carried down flush with the top of the frame.

The front sides of the indicator-rods are exposed at the front of the standing breech, and each rod is provided at its lower end with a carriage 6l, shaped to receive the head of a shell, while the lower rear face of each indicator-rod is exposed at the back of the standing breech, as shown in Fig. 7, and has teeth 60L produced in its rear exposed face, forming a rack-surface on each indicator.

Just above the rack-surface of each indicator a recess 6la is produced, and when an indicator is carried upward above the frame of the gun the recess 6l therein will be brought in registry with the rear member 63 of an angular stop-pin 62, one of which pins is provided for each indicator-rod. -The forward member 63 of each pin extends horizontally alongside of the outer side face of an indicator-rod, as shown in Figs. 6 and 7, the other member extending along the back portion of the rod, and the rearward member 632L is normally pressed outward by a spring 64, (shown particularly in Fig. 7,) located in an opening in the standing breech corresponding in shape to that of the stop-pin which it receives. The end of the stop-pin that extends to the front of the standing breech, as shown in Fig. 6, is provided with an angular head, which when the indicator to which the stop-pin belongs is in its lower position is flush with the front face of the standing breech; but when the indicator is in its upper position the head of the stop-pin extends forward beyond the said front face of the standing breech. v

At each side of the upper portion ot' the standingbreeeh an undercut rib 65 is located, which stops short of the top of the breech, and the inner edge of each rib 65 is substantially flush with the rear vertical side wall of a magazine-chamber. An angular latch 66 is located about centrally between the top and bottom of the standing breech within each magazine-chamber, and the said latch, as shown in Fig. 2, is normally pressed outward by a spring 67, and when the barrels are closed on the breech the latches 66 are forced rearward.

The cartridges are loaded into the magazine-chambers through the drop-doors of the same, and the loaded cartridge, which is contained in the bottom of the chamber and which is supported by the carriage of the indicator-rod, serves to force outward or extract the cartridge which is fired and which is located in the upper portion of this chamber. When a cartridge is iirst placed in the chamber, it is placed therein when the barrels are closed, and as the barrels are opened, th rough a means to be hereinafter described, the indicators are raised and will carry the loaded cartridge upward, entering the rim portions of the cartridge-heads in the undercut sections of the ribs 65 on the standing breech, and as the cartridges pass the latches 66 the said latches are forced rearward; but as soon as the rim of a cartridge has cleared alatch the latch will be forced forward by its spring and will support the bottom portion of .the cartridge-rim, while at the same time the stoppins 62 in the upper portion of the standing breech will have been forced forward by their springs when the indicators have been fully raised, and their heads serve to limit the upward movement of the cartridge, so that the cartridge is held in place while the barrels are being closed and in such manner as toinsure the cartridges entering the barrels. After the cartridge in one of the barrels has been fired and the barrels are open the mechanism is such that only the indicator belonging to the barrel that has been fired will be elevated. At the opening of the barrels both cartridges will be held in position at their heads bythe undercut rib 65 and thelatches 66;

but since only one of the indicators has been carried upward,carryin g with it only one shell,

the empty shell will be expelled, being forced out by the loaded shell carried upward by the rising indicator, and as the empty shell leaves the holding devices on the standing breech the head of the filled shell will enter to an engagement with the said devices, and when the barrels are closed both cartridges will be in position to enter the said barrels. A third cartridge is then placedin the magazine-chamber from which the cartridge was taken for the barrel. Under this arrangement it will be observed that two cartridges may always be held in reserve and that either one or both may be brought in position for loading, as required.

An orifice 68 is made in the upper portion of the central rib 57 of the standing breech, being so placed as to receive the pin 21'in the `rear end of the barrels when the barrels are IOO closed, as illustrated in Fig. l, and below the orifice 68 an opening 69 is made in the standing breech, which will extend from the front to the back, as shown in Fig. 9, the rear end of the opening 69 being wider than the other portions of the same.

A releasing-pin 70 is held to slide in the opening 69 of the standing breech, and when the barrels are open the pin 70 will extend beyond the front face of the breech. Between the ends of the pin a head 7l is formed, which may be and usually is rectangular, and at the bottom portion of the said head, below the under surface of the pin, a wedge extension 72 is produced, and the enlarged portion of the opening G9, in which the releasing-pin is mainly located, is of such shape as to receive the head 7l, together with its wedge extension. The rear end of the pin is held to slide loosely in a socket 73, formed in the block, which is attached to the inner face of the top of the frame B, as shown in Fig. l, while a spring 74, having a bearing at one end against a projection on the pin and having a bearing at its opposite end against the forward end of the socket 73, serves to force the pin 70 forward when the barrels are opened, carrying the wedge 72.

It has been stated that the opening of the barrels causes the indicators of the empty barrel or barrels to rise. This is accomplished, primarily, through the medium of a rack-bar 75, which is pivotally connected with and is moved by the limiting-bar 33, and a drivingpinion 7G, which meshes with the teeth of the rack-bar, together with shifting pinions 77 and 78, driven from the pinion 76 and engaging with the rack-surfaces of the indicators or indicating-rods 59 and 60. (Shown in Figs. (i and 7.) The driving-pinion 76 is fiXedly secured to the spindle 79, journaled in the sides of the frame B. The pinions 77 and 78 are looselymounted on said spindle, and each shifting pinion is provided with an inner clutch-face, arranged for engagement with a clutch-surface upon the driving-pinion. Such an arrangement may be made as illustrated in Fig. 5, in which a key 80 of the driving-pinion extends beyond both sides thereof and is adapted to enter recesses 8l, made in the shifting pinions. The right-hand shifting pinion engages with the rack-surface on the righthand indicator, and the left-hand shifting pinion engages with the rack-surface of the left-hand indicator. Each shifting pinion is provided at its outer face with a sleeve 82, having a flange at its outer edge, as is also shown in Fig. 5, and springs 83 engage with the bearings for the spindle and against one end of the sleeve of each shifting pinion, coiling around the spindle, as shown in Fig. 5, the tendency of the springs being to force the shifting pinions to an engagement with the driving-pinion 7G.

In connection with the shifting pinions two shifting plates D and D are employed, one being adapted for the right-hand shifting pinion and the other for the left-hand pinion. These plates are mounted to slide one over the other and both upon the rear face of the standing breech immediately below the shifting pin 70. Each of these plates is provided with two slots 84, one near each end, which loosely receive screws 85, entered into the standing breech. The front or right-hand shifting plate D is provided at its right-hand end with an angular or L-shaped projection 86, the horizontal member whereof is carried rearward, and a lug 87 is projected downward from the inner end of the horizontal member and enters an annular channel in the sleeve of the right-hand pinion 77, the channel having for its outer boundary the iiange 82 of the said sleeve. The right hand shifting plate, as shown in Fig. 13, is also provided in its upper edge with two recesses 88 and 89, one being lower than the other, and the uppermost recess 89 is at the right-hand end of the plate, the lower recess 88, which is at the center of the plate, being adapted to receive the wedge 72 of the shifting pin.

The left-hand or rear shifting plate D' is like in construction to the plate D, but the position of its recesses and projections is reversed, with the exception of the lower recess 90, which is in the center of the plate at the top, and the upper recess 91 is near the lefthand side of theL plate. An angular projection 92, corresponding to the projection 86 of the plate D, is at the left-hand end, and its horizontal member extends rearwardly. From the horizontal member a lug 93 is downwardly projected, adapted to engage with the lefthand shifting pinion 78 in like manner as the lug 87 of the plate D engages with the righthand shifting pinion.

As hereinbefore stated, the two plates are mounted to slide one upon the other, and the horizontal members of their angular projections 86 and 92 serve as supports, the righthand plate at its left-hand end sliding upon the horizontal member of the projection from the left-hand shifting plate, while the righthand end of the left-hand shifting plate slides upon the horizontal member at the right-hand end of the right-hand shifting plate.

A bifurcated pillar 94 is secured at its upper end to the top part of the frame, and the bifurcated members of the pillar extend downward within a predetermined distance of the bottom of the frame, as illustrated in Fig. 4, where they are connected by a horizontal plate 95, and, as shown in Fig. ll, this plate is of such length and so shaped that it will extend to the rear face of the stationary breech and may be securely attached to the same.

At thelower portion of the pillar upon each side a vertical rib 96 is formed, and a corresponding rib 97 faces the forward portion of the rib 96, its construction being duplicated upon both members of the pillar. In this manner a slideway is formed upon each outer side face of the pillar for the lower portion of the latch, and the said latches are designated,

IOO

IIO

respectively, as 98 and 98, two latches being illustrated, one in Fig. 1 and the other in Fig. 2. The latch 98 is provided withahead 99, and the latch 98 is provided with a head 99, and these heads are adapted to extend over that portion of the two shifting plates at which the upper recesses are formed, the the head 99 of the right-hand latch extending over the recess 89 of the right-hand shifting plate, and the head 99 of the left-hand latch 98 extending over the recess 91 in the left-hand shifting plate, and these heads at times are adapted to enter the recesses over which they are located.

Each latch 98 and 98 where it passes between its guides is provided upon its out-er face with a horizontal boss orprojection 100, and springs 100 are secured to the pillar 94 and exert downward pressure upon the projections or bosses 100, as illustrated in Fig. 2.

A crank-arm 101 is located in front of the right-hand latch 98 at a point below the same, and this crank-arm is attached to ashaft 102, which is journaled in the rear portion of the bottom plate of the pillar 94, and the said shaft extends through to the left-hand side of the frame, Where a second crank-arm 103 is secured to the shaft, and this second crankarm 103 is located immediately below the lefthand latch 98 and is capable of raising the same when the right-hand crank-arm is elevated.

At a point below the left-hand latch 98, yet out of the vertical plane thereof, a crankarm 104 is located, secured to a shaft 105, which extends through the forward portion of the bottom plate of the pillars in direction of the right-hand side of the frame, at which point a second crank-arm 106 is secured to the shaft 105, located beneath the right-hand latch 98, being capable of raising the same when the opposing crank-arm 104 is elevated. The disposition of these crank-arms and their shafts is clearly shown in Fig. 11.

A hammer 107 is pivoted by means of pins 111 to the inner face of the side portions of the frame B and, as illustrated in Fig. 8, each hammer upon its inner side is provided at the top with a shoulder 108, extending longitudinally of the same, and at the bottom, upon its inner side, yet above the pivot, a transverse shoulder 109 is formed. When a hammer is in the cocked or firing position, (shown in Fig. 8,) the upper shoulder 108 will be vertical and the lower shoulder 109 horizontal, and also upon the inner face of each of the hammers below the pivot 111 a pin 110 is located. Each hammer is further provided at the rear lower portion with a shoulder 112, which when the hammer is in a cocked position is engaged by the nose of a sear 113, a sear being provided for each hammer, and each sear at its free end is provided with an inwardly extending horizontal flange 114. The rear end of each sear is subjected to the downward pressure of a spring 115, secured in the socket 116, formed upon or attached to a side of the frame, and the mainspring 117 is likewise secured in this socket and bears against a crank-arm 118, attached to the rear lower portion of a hammer at the rear of its pivot, as illustrated in Fig. 8.

A shaft 119 is journaled inthe 'pillar 94, and between the members of the pillar a segment 119 is secured to the said shaft, the said segment engaging with the rack-surface of the rack-bar 75, operated by the movement of the barrels, and at each outer end of the said shaft 119 a crank-arm 119b is secured, terminatingin ahead 120, preferably circular in cross-section and provided with a pulley or a loose ring in order that friction may be re.- duced to a minimum when the head is brought in contact with a given surface. The heads 120 of the crank-arms 119, operated by the segment 119, areadapted to engage with the shoulders 108 on the hammers 107, and the offsets 100 on the latches 98 and 98 are adapted for engagement with the lower horizontal shoulders 109 on the hammers, as illustrated in Fig. S.

Two firing-triggers 121 and 122 are provided, one for each barrel, the heels 124 whereof are held in a lowerposition by springs 123, and the heels of the triggers when the latter are drawn rearward trip the sears by engaging with their iianges and release the hammers. The hammers are cocked when the barrels are opened, as the rack 75 will then have a forward travel and will rock the segment 119downward,carrying thehammerraising cranks 119b rearward, causing their heads 120 to engage with the upper shoulders 108 of the hammers, forcing the latter t-o a locking engagement with their sears, as illustrated in Fig. 8, and when the barrels are ICO closed the ham mer-cranks are carried forward to the position shown in Fig. 2, out of the way of the hammers in their passage to the firing-pin.

When the barrels are closed, the trip-pin 70 is forced rearward, carrying the wedge 72 into the lower recesses 88 and 90 of the two shifting plates, spreading them apart. When the hammers are cocked, the pins on the IIO hammers will lift the latch-operating cranks 101 and 104, causing the latches 98-and 98 to be lifted from the shifting plates. When, for example, the right-hand barrel is red, the lower shoulder 109 of the right-hand hammer will enter under the offset 100 of the righthand latch 98 and maintain that latch in its elevated position; but the pin 110 of the right-hand hammerwill have released the right-hand crank 101of the shaft 102, permitting the left-hand crank 103 on the same shaft to drop from beneath the left-hand latch 98, whereupon the spring connected with this latch will force said latch downward into the upper recess 91 of the left-hand or rear shifting plate B', holding said plate stationary and preventing the left-hand pinion 78V from clutch engagement with the central or fixed pinion 7 6.

When the barrels are opened, the front or right-hand shifting plate D being free to slide will oder no resistance to the spring on the right-hand pinion 77 in its effort to force the same to a coupling engagement with the central or driving pinion 7G, especially so since at the opening of the barrels the wedge is automatically withdrawn from the shifting plates by its controlling-spring. The result, therefore, is that as the barrels are drawn from the breech the right-hand pinion 77 will be revolved by the driving-pinion 76, and the right-hand indicator and its carriage will be raised to eject the empty shell and place a loaded one in position to enter the right-hand barrel when the barrels are closed. Meanwhile the left-hand indicator and shell in the left-hand barrel are not disturbed.

The frame B is provided with the usual tangs 125, which are secured to the stock 127, and the triggers 121 and 122 are provided with forwardly-extendinglips 126, sufficiently elevated from the bottom of the frame to permit the releasing-bar 34 to slide under the said lips when the bar is drawn rearward to admit of the opening of the barrels, and when the releasing-bar 34 is just beneath the lips of the triggers it will be utterly impossible to operate the said triggers. Therefore the gun cannot be fired by any possibility while the barrels are opened.

The safety device shown and designated as E may be of any approved construction, and embraces a plate 128, held to slide upon the upper tang of the frame, and a bar 129, located beneath the said tang and connected with the outer plate, the said bar being provided With a spring 130 at its rear end, having an offset 140, adapted to enter recesses 141 in the bottom of the upper tang of the frame, so as to hold the safety-plate in position to lock the triggers or in a position to permit the triggers to be operated. Ears 142 are projected from the inner bar 129, and between these ears the squared head 143 of a safety-pin 144 is pivoted, springs 132 bearing upon the said head, and the safety-pin terminates in a transversely-located foot 145, which when the device is carried to the safety position will be immediately over the heels of the trigger, preventing the said heels being raised.

The improvement in the safety device consists in a means automatically controlled whereby both of the triggers cannot be pulled at the same time, and this improvement consists of a horizontal yoke 135, attached to a shank 146, which is pivoted to a block 147, attached to the bottom tang of the frame. The fork has a laterally-rocking motion and its members extend over the flanges of the sears 113. Neither sear can be raised sufiiciently far to release the hammers when both triggers are pulled at the same time, their upward movement being limited by the safetyfork 135; but when one trigger is pulled the sear to be operated by that trigger is free to rise, because the opposite member of the fork Will be rocked downward over the sear of the other trigger and close thereto, permitting the member of the fork which is over the sear of the trigger pulled to rise.

The firing-pins 14S may be of any approved pattern and are preferably spring-controlled, having movement in openings 149, provided for them in the standing breech. Below the head of each firing-pin a stop-block 150 is formed upon each side of the frame B, as shown in Fig. 8, the position ot' the safetyblocks being such that when the hammers strike the iiring-pins and force them in sufiiciently to explode the cartridges the heads of the hammers will rest against the said stopblocks, thus preventing the force or strain of the mainsprings 117 being brought to bear upon and thus sustained by the iiring-pins, adding greatly to the lifetime of the gun.

Pins 151 are projected downward from the top of the frame, as also shown in Fig. 8, serving to prevent the firing-pins from leaving their position in the frame and in the standing breech.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a gun,the combination,with the firingtriggers provided with extensions within the frame of the gun, of a barrel-releasing bar having sliding movement beneath the trigger extensions, the said bar when the barrels are locked being clear of the trigger extensions, permitting the triggers to have free movement,but wherein when the barrels are opened the said bar will intervene the trigger extensions and the bottom of the frame, preventing the triggers being drawn, substantially as described.

2. In a gun, the combination, with indicators having movement in the breech and having rack-surfaces, the indicators being provided with ejecting-carriers, a rack, moving barrels for operating the rack, a driving-pinion engaging with the said rack, and shifting pinions adapted for driving connection with the driving-pinion and arranged for engagement with the rack-surfaces of the indicators, of shifting plates having sliding movement one upon the other, controlling the movement of the shiftingpinions, latches controlling the movement of the shifting plates, tension devices exerting downward tension on the said latches, and crank-arms arranged to elevate the latches, being operated by the forward movement of the hammers of the gun, as and for the purpose set forth.

3. In a gun, the combination, with indicators having movement in the breech and having rack-surfaces, the indicators being provided with ejecting-carriers, a rack, moving barrels for operating the rack, a driving-pinion connected with the aforesaid rack, and shifting pinions adapted for driving connection with the driving-pinion and arranged for engagement with the rack-surfaces of the in- IOO IIO

dicators, of shifting plates having sliding movement one upon the other, controlling the movement of the shifting pinions, latches controlling the movement of the shifting plates, tension devices exerting downward tension on the said latches, crank-arms arranged to elevate the latches, being operated by the forward movement of the hammers of the gun, and a spring-controlled wed ge operated by the closing movement of the barrels and arranged when the barrels are closed to laterally separate the said shifting plates, as and for the purpose set forth.

4:. In a gun, the combination, with a rack, and moving barrels for operating the rack, of a segment meshing with the said rack, crankarms connected with the said segment, and hammers provided with shoulders for engagement by the crank-arms, the relation of the crank-arms to the shoulders of the hammers being such that at the forward movement of the barrels the hammers will be carried to a cocked position, as and for the purpose specilied.

5. In a gun, the combination, with a frame, sliding barrels, the hammers and ejecting devices, of a driving-pinion operated by the movement of the barrels, a shifting pinion at each side of the driving-pinion, arranged for clutch engagement therewith, shifting plates connected with the shifting pinions, a wedge having its movement controlled by the movement of the barrels, which Wedge engages with the shifting plates, normally holding the shifting pinions from the driving pinion, latches arranged for engagement one with each shifting plate, cranks connected with the latches, and projections upon the hammers arranged to engage with the cranks and lift the latches when the hammers are cocked, shoulders located on the hammers above the projections, and offsets upon the latches for engagement by said shoulders on the hammers when the said hammers have been thrown in firing, as and for the purpose set forth.

6. In a gun, the combination, with the frame, sliding barrels, the hammers and ejecting devices, of a driving-pinion operated by the movement of the barrels, a shifting pinion at each side of the driving-pinion, arranged for clutch engagement therewith, shifting plates connected with the shifting pinions, a wedge having its movement controlled by the movement of the barrels, the wedge being arranged for engagement with the shifting plates, normally holding the plates from connection with the driving-pinion, tension-controlled latches arranged one for engagement with each shifting plate, offsets secured upon the latches, having a crankarm at each end, one crank-arm of each shaft being in lifting engagement with a latch, the other crank-arm having free movement near the opposite latch, projections upon the hammers, adapted to engage with the free crankarms, and shoulders upon the hammers, ar-

ranged for sustaining engagement with the offsets on the latches, as and for the purpose set forth.

7. In a gun, the combination, with a frame, barrels held to slide to and from the frame, ejecting devices, and a driving-pinion operated by the movement of the barrels, of a shifting pinion at each side of the driving-pinion, arranged for clutch engagement therewith, shifting plates connected with the shifting pinions, a wedge having its movement controlled from the barrels, being arranged for engagement with the shifting plates, normally holding them disconnected from the driving-pinion, tension-controlled latches arranged for engagement with each shifting plate,offsets secured upon the latches, shafts journaled below the latches, having a crank-arm at each end, one crank-arm being in lifting engagement with each of the latches, the other crank-arm having free movement near the opposite latch, hammers for the gun, each provided with a pin and a shoulder, said pins being in lifting engagement with the free crank-arms when the hammers are cocked, the arrangement of the crank-arms, offsets upon the latches, the pins and shoulders upon the hammers being such that when the righthand barrel is fired the shoulder of the righthand hammer will hold the right-hand latch elevated, the pin upon the right-hand hammerat the same time releasing the liftingcrank from its lifting engagement with the left-hand latch, substantially as described.

8. In a gun, the combination, with ejecting devices, a driving-pinion, sliding barrels operating said pinion, a shifting pinion at each side of the driving-pinion, and shifting plates connected with the shifting pinion, of latches having offsets, lifting-cranks for the latches, hammers provided with shoulders and projections, the projections serving to hold the latches raised when the hammers are cocked, the shoulder of a hammer being adapted when the hammer is tripped 'to hold the latch raised at the same side of the frame at which thev hammer is located, the pin of the tripped hammer at the same time releasing the latch of the opposite or cocked hammer, substantially as described.

9. In a gun, the combination, with a frame, the fore-end of the same, barrels mounted to slide on the fore-end, a limiting-bar, a rack connected with the limiting-bar and operated by the movement of the barrels, a releasingbar, a trigger connected therewith, and guide projections upon the releasing-bar, causing said bar to move parallel with the movement of the barrels, of an arm operated by the releasing-bar, said arm being passed at one end through the limiting-bar and provided at its opposite end with teeth, a lock-latch pivoted in the fore-end, adapted for engagement with the barrels and having teeth arranged for engagement with the teeth of the said arm, a stop carried by the latch, adapted for engagement with the limiting-bar, a flexible exten- IOC IIO

sion for the forward end of the limiting-bar, a head-block upon said extension adapted to entera slot in the fore-end and a slot between the barrels, a spring arranged to engage with the head, and a lever having a cam-head arranged to engage with said spring and maintain said liead-block in engagement with the barrels, as and for the purpose specified.

10. The combination, with the trigger of a gun having forward extensions, of a releasing-bar for the barrels of the gun, which releasing-bar at its releasing movement passes under the trigger extensions, as and for the purpose set forth.

11. The combination, with the triggers of a gun having forward extensions, of a releasing-bar for the barrels of said gun, a limitingbar for the barrels ooperating with the releasing-bar, the rear portion of said releasingbar when carried rearward to a position releasing the barrels being arranged to pass beneath the extensions of the triggers, preventing the triggers from being operated, as and for the purpose specified.

l2. In a gun, the combination, with the sears, of a rocking lock extending over said sears, preventing the two triggers from being simultaneously thrown, the said rocking lock being operated by the elevation of the sears in firing, sliding barrels, a releasing-bar for the barrels, triggers having their forward inner ends extending beyond their pivots, beneath which inner forwardly-extending ends of thertriggers the releasing-bar is carried when the barrels are released by said bar, as and for the purpose specified.

13. In a gun, the combination, with the sears, each sear being provided with an iuwardly-extending iiange, of a forked locking device mounted to rock in the frame of the gun, the members of the aforesaid fork extending over the flanges of the sears, whereby either of the sears may be raised, one after the other, but wherein both sears cannot be elevated at one and the same time, thereby preventing both barrels of the gun from being simultaneously discharged, a sliding safetyplate, and an arm projecting from said plate, terminating in a foot of a width for engagement with the flanges of both sears, as and for the purpose set forth.

VILLIS H. OSTRANDER.

Witnesses:

J. FRED. ACKER, J No. M. RITTER. 

